RT Journal Article
T1 The Celestial Frame and theWeighting of the Celestial Pole Offsets in the Computation of VLBI-Based Corrections for the Main Lunisolar Nutation Terms
A1 Puente, Victor
A1 Folgueira López, Marta
AB Very long baseline interferometry (VLBI) is the only technique in space geodesy that can determine directly the celestial pole offsets (CPO). In this paper, we make use of the CPO derived from global VLBI solutions to estimate empirical corrections to the main lunisolar nutation terms included in the IAU 2006/2000A precession–nutation model. In particular, we pay attention to two factors that affect the estimation of such corrections: the celestial reference frame used in the production of the global VLBI solutions and the stochastic model employed in the least-squares adjustment of the corrections. In both cases, we have found that the choice of these aspects has an effect of a few µas in the estimated corrections.
PB MDPI AG
SN 1424-8220
YR 2022
FD 2022-12-10
LK https://hdl.handle.net/20.500.14352/72666
UL https://hdl.handle.net/20.500.14352/72666
LA eng
DS Docta Complutense
RD 10 abr 2025